oenison



1. F. DENISON. GASOLENE PUMP. APPLICATION FILED IIAvIz. Inu.

Patented Nov.' 4, 1919.

2 SHEETS-SHEET l;

n l I .Eg 'im I 3f III" III fag @44% l I L HIlV///////ll/f/////////// i l I l g: 0 .529

4] E l 'I l2 l0 l I v I I Q, I l I I l I l I; g I l 4 I l I VE/vjon 4m A TTOHIVE)l l. FQ DENISON. GASOLENE PUMP. APPucATmN FILED MAY 12. lau.

-Mari INVENTOI? www.

ATTHNEY means for priming .the

Jorian r. Denison, or naw Haven, con'ivac'ricn'r, assiettes. 'ro

eo'r'rrarnn rmi., or

Naw vous, n. Y.

l caseLaw-rum.

casacca.

Specification of Letters Patent.

Patenten New. a, raie.

application mea my ia, ieri. seriai no'. ieai'ie.

closure the invention will be illustrated specifically in its adaption to a pump construction, in a system for supplyiu liquid fuel to the carbureter of an interna combustion engine such as is used in automobile driving plants.

Devices of this kind 'now in 'usually require either an air ti ht condition of the liquid containing tank w r'e the pressure feed system is used or require eiipensively actuated pump parts and liquid charged parts which are subject to leakage, where'the gravity system is used.

Accordingly one of the objects of the invention is to provide a simple form of pump and drive therefor designed to be inserted in a low level rece tacle and arranged to elevate the liquid t erefrom through normally drained conduits to any desired level and which will not require the useA of any air tight parts which might aect the actuation of the ump. i

Auot er object of the invention is to provide a construction which will permit of any easy actuation of the parts with the miniand incidental muni consumption of power to this object it is a further desideratum to mount the parte, so that the rotating meinbers ma be loosely journaled and free of fluid tig t connections.

Devices of this class usually require some pump and this primthe consumption of before general use ing operation requires time and results in a material dela the device can become operative an the en-` gine started. o I 0 Another object of this invention is to 'provide a pump which will be primed at all iinics and instantly responsive to its inaugurating control device.

Another ob'cct of the invention is to design the pump so that practically all of the driving mechanism and other parts which l in. the following ma be affected b conditions within the tan are removed t erefrom and ositioned so as to be readily accessible for inspection and repairs.

A still further to provide a signaling the pump has caused a objectof the invention is device operative when low level liquid condition in the receptacle.

Various other objects and advantages of the invention will be in part obvious from an inspection of the accompanying drawings and in part will be more fully set forth particular description of one form..o mechanism embodying my invention, and the invention also consists in certain new and novel features of construction'and combination of parts hereinafter vset forth and' claimed.

In the drawings: l*

-Figure 1 is a view partly in side elevation, of a preferred embodiment of my in vention shownins'talled in a tank an other parts shown diagrammatically.

Fig. 2 isa view similar to Fig. 1, but showing the device from the left side of the Yiew show-n in Fig.'1;

Fig: Bis a plan view looking down upon the motor parts shown in Fig. 1' with the casing removed; and

Fig. 4f is a horizontal sectional view taken on the line 4 4 of Fig. 2.

ln the drawings, there is shown a conventional form of main fuel supplytank, usual in automobile constructions andincluding an up er wall 10 and bottom 11, the upper wall eing provided with a conventiona form of inlet opening 12 usually utilized for supplying liquid to the tank.

The device particularly forming the subject-matter of this invention as a unitary article of manufacture adapted d with is illustratedI aor to be inserted through the inlet opening 12.

a head 17 provided with an intake port 18,

45 able .to include -thegnition or magneto in squared o p Ourthe preferred form of ,the invention 1'5 and'mlposition so that t opening thcreto preferably from a position'v 'this urpose the device illustrated is pro# adjacent the bottom 11 of the tank. The invid with a signaling deviceA 33,` herein intake ort is covered by a screen 19 removy. dicated dia ammaticall `by an4 electric ably eld in position by screws 20,- whicli light lamp. he circuit trough the lamp is. 5 are also utilizedl to fasten the head tothe closed b a float controlled circuit closer 34 7o barrel. A revolving pump element 21 .pro-4 arra when a low level condition is vided with blades 22 (see Fig. 4) is mounted reached to complete the circuit throu h` the to revolve within the head 17, asis usual lamp 33 and through conductors whic lead A with devices of this character. The pump from ,the main supply conductor 32 'to a lo'isprovided with a discharge port23 leading relatively fixedcontact rod 35. 'This ,con- 75 to an upstanding discharge pipe 24. This tact 35 `includes 'a plu r 36 slidably 'arge pipe is in fluid tight connection mounted in'an'insulatmg s eeve, 37 passing with the pump barrel and leadsvupwardly through-the field-piece 38 of the motor. The out of thetank through .the inlet opening 12 plunger is resiliently supported in space by and is fixed in the cover plate 15 so as to be means of a relatively weak coil spring'39 80 removable therewith as ayunit. The liquid so disposed as to support the plunger 36' isdischarged from the pi e to anysuitable resiliently and to cushion the engaging receptacle exteriorly of t e receptacle and movement therewith of a float controlled c0- herein indicated 'diagrammatically by the actin contact plunger 40. The plunger 40 2o pipe 25 which'is providedwith apressure is s liabl gage 26. I fixed to and-depending from `the cover plate he power plant for yactuating the pum 15. The plunger 41 is connected by means is mounted within an inclosing Vcasing 2 of areach rod 42 with the arm 43 of a bellcarried by and preferably constituting a part crank lever organization' 44 pivotally su y mounted in la guiding sleeve 41 85l of the cover late. Mounted within the casrted in position. The other arm 45 of t e 9o ilg isa smal lsize, high speed electric motor ll-crank lever is relatively long, so as to 2 provided with an armature shaft 219, reach almost to the bottom of .the receptacle which depends therefrom, proJects through and has a float member 46 fixed tothe outer the cover plate and is rigidly attached to Aend thereof. The lioat control device'is so the revolving element 2 1 of the motor tol arranged -that when a low level condition of 95 A' actuate the saine. While this shaft is shown the liquid in the receptacle has. been caused -to be formed of one lengthvso as to emphaby the action of the ump,- tlie'oat member size therigid driving. connection between the will' beA adjacent the bottom of thetank and electric motor and the pump, itwill be` in -a position. to cause the plunger 40 and understood that'the pump shaft ma be, and contact -rod 35 to make electriccontact.l This 10o usuall'yl' is, formed se arate from t e arma- 'closin of the circuit will cause current to ture s aft and `suitab ycoupled 'togetheig-so pass iomxthe main supply conductor 32, that there may be a direct drive from the through aconductor 47 leading to the sigmotor to the pum naling lamp and therefrom through a con- Current may supplied tothe 'ilitor ductor 48 leading through a metallic motor 105 om any suitable source 30 which may be part such as `the post 31jto the rod 35, and a suitable number of batteries. When the plunger 40. This plunger is, grounded on device-illustrated isA installed 'as parl'. 'of an the-cover plate 15. Y automobile engine construction, it is desir- The upper end 49 of the plunger-40 is and ma l circuit with ithis' inbtoi', so that the closing cater todesignate t e roportionate amount of the magneto circu1t will automatically orlevel ofliquidin t e tank. Inorde'r to and simultaneously .actuatethefuelsupply facilitateV the readingicf this indicationA a scale 50 is mounted on the 'supporting late e top o the 115 a -on e wires steiinespecially where lunger wi move relative to a scale 51 (see the evice is utilize as art'vo the dri gig. 2.) on "said plate. The plunger end and mechanism of an automa ile, itis preferable coactin scale are visible through a lass that one side of the Source of electric energy covere opening 52 in the lower side'o the 55 be groundedas by attaching -a lead there*- Yinclus' casing 27. l 12o from to the receptacle, the chassis o r some In digger to maintain the motor'and pump I other grounding element.. Current is sup` in fixed relative position'Y a long spacing` phed from the source 30 to one .of the coiisleeve 53 is ixedto and extends through the tact posts 31 for the brushes of the motor plate 15 and has its lower end fixed tothe' .eo through a conductor 32 the other'brush of top of the pump barrel. The amature and 125 i tlie motcrA grouii ed' as'is usual with pump shafts are journaled loosely in vbear` vdevices of this character. ing 54 htted within the sleeve and which acts i Y 'Itis desirable in sucli'devices to' indicate priinarily tosteadv the action of the lon Y 1f et Y-tmiiilition ofthe liquid in the ti by some suitable Asignaling device a low level driving shaft. As -this sleeve is not intend Abe utilized as an indii and for Ato actas 'a duid conduit it may be eel 13e completing along the sides and care need be exercised to insure a fluid tight fit betwecnthe several parts about this sleeve.

It is desirable under some conditions to provide a means for automatically intercepting current to the motor and to control the same by a liquid level condition either in the receptacle from which the liquid 'is discharged or by a liq a receptacle into which charged, i

Inthe arrangement shown inFig. 2 .the pipe 25 is shown to be discharging into a receptacle 55 whichmay be regarded as the ioat chamber of a carbureter. A float 56 is connected to a contact control lever? arranged so that normally the weight of the lever and floatt will cause a closed' circuit condition to'exist inthe circuit .closer 58 which is contained in conductor 59onfthe grounded side. of the source of electric energy.

in operation,

the liquid is .dis-

and with the tank supplied with a body of the liquid to be elevated which liquid should have -a level at least suiciently high to cause the tioat controlled device to break contact between the rcd 3 5 .and plunger 40," the closing 'of' the circuit through the motor as` suggested will cause the same to act promptly and directly upon the pum submerged in the liquid. The ump wi l act to force the li uid upwardly out of the tank through the ischarge pipe and toward the carbureter 0r other device supplied thereby. There will thus -be a constant stream supplied as is actuated, and as the intake to the pump is positioned close to the bottom of the receptacle, the pump will continue to supply a stream of liquid practically as long as there is any liquid remaining in the receptacle.

As the liq id level is lowered by the action of the pump, the float 46 will gradually dro until eventuallyv the plunger 40 is mov thereby into contact with the rod 35, thus the circuit'through the signaling device, causing the lamp to light and thus indicate thata low level condition has been reached within the receptacle. The entire insert may then be lifted out ofthe receptacle by making the4 necessary break in the liquid pipe line, 'but preferably the receptacle is refilled through another inlet (not shown). When the pump is reinserted into operative position in the tank or the tank refilled with the pump in position the higher level of liquid therein will raise 'the float until the float rod isin the position shown in dotted lines in Fig. 2. In this hi h level position the lunger 40 will be wit drawn away from t e rod 35 'circuit through the signaling device.

By means of a device of this character, it is possible to confine the necessity for uid level condition in' 'of designing a Vdevice of this character.

'long as the pump 1 for replacing of .thus breaking the fluid tight connections to the pump and discharge pipe, and there is no necessity for maintaining a fluid tight connection through the spacing sleeve, nor is there any necessity for having .a fluid tight packing at any place along the pum shaft. As long as t e pump is will be a Huid pressure withinthe upst'anding discharge pipe, Ibut as soonas the pump stops, any liquid remainingA in the pipe promptly drains back into t e pump or at least back to the level of the liquid within the receptacle. In this way, there is no liquid left standing inthe portion of the supply pipe or other parts exteriorly of the receptacle and accordingly there is no possibility of draining the receptacle due to any leakage in the fluid system.

There is but one pipe line used,4 this construction assisting to economize in the cot t is obvious that this pipe may be so proportioned so as tocoactv with an economically actuatedtype of motor, and the arts of the entire device so arranged that there will be supplied to the 'carburete'r or other receiving-body, a constant stream, just sufficient to supply the demands on the device with the least poss`ble consumption of power.

There is no air or gas ressure present in the receptacle, thus avoi ing another of the objectionable features in one known type of such devices. As the electric motor is positioned outside of the receptacle, the possibility of firingv he contents of a tank by sparking of the motor is reduced to a minimum, if not entirely eliminated. As the motor and in fact practically all of the. parts, except the pump and necessary connecting mechanisms is .mounted extei'iorly of the receptacle ready access is provided repairs without ingllie unit from the receptacle.

en installed as part of an automobile driving plant and in circuit with the mag` neto circuit, it can start automatically on the closure of the circuit and is inoperative position before the starter is used SO that the device may be.utilized as a priniing device for supplying a priming charge to the carbureter for inaugurating the action of engine.

, One advantage of using a pump of the type illustrated is that in case the flow t rough thepipe son t e pump works idly without causing an material increase of pressure in the pipe and therefore material eXtra load to carry with the resulting loss of power and in fact the current consumption is reduced.

yHaving thus described my invention',` I claim:

the motor does not have any actuating there brushes or other necessary the 'necessity of demount- 25 is shut off for any reaa devic'e of the class described, the 130 coupled to the rotary l int combination 4with a iafniffpifovified 'with an i(liplening in the top thereo -bottom of the tank, a spacing sleeve x'ing,

the pump to the casing, a motor' housing carried hy said plate abovethet tor `positioned in said housing lwithits armature shaft extending through said sleeve. and element of the pump e tank, a discharge pipe connected tothe discharge port of the pump positioned te extend parallel to thesleeve, fixed to the y plate and extending through said plate 'and housing.

2; ln a device of the' class descnibed, a'

pgrta'ble unit includiugal pump ada ted to inserted into a tank to pump liqui therefrom, pump to actuate -the same, means for supporting .the motor exteriorly of the -tank containing the pump, a discharge pipe leading from the discharge portof the pump and said'pump having acapacitynto maintain the pumped liquid under pressure in said vdischarge pipe.y

l 3. In a dev-ice of the class described,. the Acombination wit bottom and with a to having an opening therein, of a remova'b e unit comprising a support adapted to close an o enin top of a tank, a pump depending froml said support spaced' therefrom a distance to reach almost to the bottom and adapted to ump liquidfrom the portion of the tank adjacent 1 tioned exteriorly a niotor'operat'ively connected to said 4 source of electricA energy adap atank provided with a g in the,

tank and an indicator above the tank actuated bvsaid loat. n

4. In adevice of the class described, the 'p combination with stank provided with an' 'opening in the top thereof, of-a pump adapted to be inserted saidtank through said opening to pump liquid therefrom and an electric circuit including a motor ofthe l connected to actuate the pumpifan" electrically actua signal positioned exteriorly. of the gtank? a circuit ing the circuit 'through the signal to indicate'a oat lpivotally mounted 'within the tank to -actuate said circuit closer.

5. Ina device .of the class t'csi'sribed,v the combination ofe pump adapted to be inserted inge tank Atop p liquid therefrom and an electric circuit including a motor operatively connected to actuate the ump, .a

open 'continuously to the.motor;l 'said circuit-provided'with a normally open shunt -65 an indicatonand a Heat circuit including controlled circuitclos'er ai iapte1d tolclose"thel circuit through'. the indicator when -a ow level is reached in the igned at New York in the county of New 70 'York'and State of New York this 23rd day of April A. D.. 19 f?. Y*

' JULIAN F. DENisoN.

sitank operatively 5o closer for closlow liquid level inthe tank and a 5 

